2. According to the Paper Aircraft Association, a paper airplane thrown in space will not fly; it will float in a straight line. Unless it hits an object, it could literally float forever (see Resources). Wingspan 3. The record wingspan of a paper airplane is 40 feet and 10 inches. The craft flew over 114 feet before crashing into a wall. Education 4. Scientists, engineers and students use paper airplanes to study aerodynamics.
Any type of trauma or injury to the testicles can cause severe pain and discomfort. The most common mechanism of testicular trauma occurs from blunt trauma (~85%), which can occur from sports injuries, a direct kick to the area, car accidents, and straddle injuries.
There are non-infectious causes of inflammation and pain of this epididymis, as well, which can be related to trauma, bicycle riding or other activities. Perhaps, one of the other serious causes of testicular pain is torsion or twisting of the blood supply to the testes. This causes the blood supply to be cut off and results in a great deal of pain. The onset of these symptoms is usually quite rapid.